Class: ContextChatEngine
ContextChatEngine uses the Index to get the appropriate context for each query. The context is stored in the system prompt, and the chat history is preserved, ideally allowing the appropriate context to be surfaced for each query.
Implements
Constructors
constructor
• new ContextChatEngine(init)
Parameters
| Name | Type |
|---|---|
init | Object |
init.chatHistory? | ChatMessage[] |
init.chatModel? | LLM |
init.contextSystemPrompt? | (__namedParameters: Object) => string |
init.nodePostprocessors? | BaseNodePostprocessor[] |
init.retriever | BaseRetriever |
Defined in
packages/core/src/engines/chat/ContextChatEngine.ts:29
Properties
chatHistory
• chatHistory: ChatHistory
Defined in
packages/core/src/engines/chat/ContextChatEngine.ts:26
chatModel
• chatModel: LLM
Defined in
packages/core/src/engines/chat/ContextChatEngine.ts:25
contextGenerator
• contextGenerator: ContextGenerator
Defined in
packages/core/src/engines/chat/ContextChatEngine.ts:27
Methods
chat
▸ chat(params): Promise<AsyncIterable<Response>>
Send message along with the class's current chat history to the LLM.
Parameters
| Name | Type |
|---|---|
params | ChatEngineParamsStreaming |
Returns
Promise<AsyncIterable<Response>>
Implementation of
Defined in
packages/core/src/engines/chat/ContextChatEngine.ts:46
▸ chat(params): Promise<Response>
Parameters
| Name | Type |
|---|---|
params | ChatEngineParamsNonStreaming |
Returns
Promise<Response>
Implementation of
Defined in
packages/core/src/engines/chat/ContextChatEngine.ts:47
prepareRequestMessages
▸ Private prepareRequestMessages(message, chatHistory, parentEvent?): Promise<{ messages: ChatMessage[] ; nodes: BaseNode<Metadata>[] }>
Parameters
| Name | Type |
|---|---|
message | MessageContent |
chatHistory | ChatHistory |
parentEvent? | Event |
Returns
Promise<{ messages: ChatMessage[] ; nodes: BaseNode<Metadata>[] }>
Defined in
packages/core/src/engines/chat/ContextChatEngine.ts:96
reset
▸ reset(): void
Resets the chat history so that it's empty.
Returns
void